"He is such a genius that I had to work in his film. He is constantly thinking about his next shot, constantly innovating to make it better. He is sure about what he wants from his actors," Shroff told the Press Trust of India.

Shooting for the film, which has a budget of about 8m rupees (under $200,000), is 85% complete.

School and friends

Kishan, whose father is a tax officer, juggles school around his filming schedules, but he is confident of doing well.

Kishan aims to hold the world record for youngest director

"When I am absent my friends take notes and give them to me," he says. "I'll pass my exams."

The boy of 10 misses playing with his friends but says he also enjoys making films and has no regrets.

Kishan is eyeing a place in the Guinness World Records for the youngest director as well.

Kishan is very clear about what he wants to do in future - and it's not just films.

"I have a one-line thought about the next film, but I have still not decided. I will be directing in future and I also want to become a 3-D graphics engineer."

C/O Footpath, due to be released this year, is being shot in Kannada and is expected to be dubbed into Hindi, Oriya, Malayalam, Bengali and Tamil.